Phoenix Contact ST 16-PE Spring-Cage Ground Terminal Block

Technical Overview

Spring-cage protective conductor terminal block for 0.2-25mm² conductors, 76A nominal current, -60 to 110°C operating temp. DIN rail mountable.

Key Features

Spring-cage connection allows simple, tool-free wiring of very small flexible conductors from 0.2 mm².
Direct DIN rail contacting provides low-resistance grounding without additional wiring.
No cross-section restrictions when using conductors with ferrules.
Meets DIN EN 60947-7-2 and IEC 60947-7-2 requirements for protective conductor connections.
Tested to DIN EN 50155 for vibration and shock, suitable for rail vehicle installations.
Compatible with CLIPLINE complete system bridging, marking, and testing accessories.
Flammability rating: UL 94 V0.
Operating temperature: -60°C to 110°C.
ATEX/IECEx certified: II 2 GD Ex eb IIC Gb, -60°C to 85°C.

Technical Specification Matrix

Parameter	Value
Product Type	Spring-cage protective conductor terminal block
Connection Method	Spring-cage connection
Number of Connections	2
Number of Levels	1
Nominal Cross Section	16 mm²
Conductor Cross-Section Rigid	0.2 mm² - 25 mm²
Conductor Cross-Section Flexible	0.2 mm² - 16 mm²
Conductor Cross-Section with Ferrule	0.25 mm² - 16 mm²
Cross Section AWG Rigid	24 - 4
Cross Section AWG Flexible	24 - 6
Stripping Length	18 mm
Nominal Current	76 A (VDE, 1.5 - 16 mm²)
Rated Surge Voltage	8 kV
Maximum Power Dissipation	2.43 W
Overvoltage Category	III
Degree of Pollution	3
Mounting Type	NS 35/7.5, NS 35/15 (DIN rail)
Color	Green-yellow
Insulating Material	PA (Polyamide)
Flammability Rating	UL 94 V0
Operating Temperature	-60°C to 110°C
Storage Temperature	-25°C to 60°C
Grounding Foot	Yes
ATEX/IECEx Certification	II 2 GD Ex eb IIC Gb, -60°C to 85°C
Approvals	CSA, IECEE CB Scheme, VDE, KR, NK, DNV, cULus Recognized
Physical Weight (kg)	0.05
Dimensions L x W x H (cm)	5.9 x 1.22 x 8

Industrial Applications

1. Industrial Power Distribution Cabinets

Used for grounding high-current circuits in industrial power distribution panels and motor control centers, ensuring robust and compliant electrical installations.

Problem Solved

Provides a robust, low-resistance protective earth connection for equipment operating with significant currents, ensuring safety and compliance in demanding electrical installations.

GroundingProtective EarthHigh CurrentPower DistributionSurge ProtectionDIN Rail76A Nominal Current16mm² Nominal Cross Section8kV Rated Surge Voltage

2. Control Systems in Hazardous & Mobile Environments

Employed in control cabinets for machinery or infrastructure located in areas with extreme temperature fluctuations, high vibration, or potentially explosive atmospheres, such as chemical plants, offshore platforms, or railway vehicles.

Problem Solved

Ensures reliable and safe protective conductor connections under severe operating conditions, including explosive environments (ATEX/IECEx) and high mechanical stress, where traditional screw connections might loosen.

Hazardous AreaATEXIECExRailwayVibration ResistantShock ResistantExtreme TemperatureIndustrial Control-60°C to 110°C Operating TemperatureDIN EN 50155 Tested

3. Compact Automation Panels with Rapid Deployment Needs

Utilized in automation control panels where space is at a premium and quick, tool-free wiring of protective earth connections is essential for efficient assembly and maintenance.

Problem Solved

Facilitates fast and secure grounding in compact enclosures due to its narrow width and spring-cage connection, reducing installation time and ensuring reliable contact without specialized tools.

CompactAutomation PanelSpring-CageTool-Free WiringSpace-SavingRapid Installation12.2mm Width0.2mm² Flexible Conductor Min